A LIST OF LICHENS COLLECTED IN NEWFOUNDLAND, 

 WITH CRITICAL NOTES ON THE 

 FAMILY USNEACEAE 



R. HEBER HOWE, JR. 



Thoreau Museum of Nntural History, Concord, Mass. 



I left Boston for Newfoundland on July 4, 1911, arriving at 

 Port-au-Basque on July 7, and proceeded at once to Stevenville 

 Crossing, St. George's Bay. I collected in this region until July 

 16, when I returned to North Sydney. The specimens collected 

 are deposited in my herbarium, and I extend my sincere thanks 

 to Dr. Ludwig Scriba, Dr. Alex. Zahlbruckner, Dr. L. W. Riddle, 

 and Dr. H. E. Hasse for their kindness in determining various 

 species, especially in the Cladoniaceae. 



Though I have examined in Paris and Philadelphia much of the 

 material collected in Newfoundland and recorded in the following 

 papers, I have made no attempt to correlate it here, except in the 

 Usneaceae, to which I gave especial study of Newfoundland mater- 

 ial while in Paris, and later through the kindness of Mr. Witmer 

 Stone, the Waghorne material of this family sent me from Phila- 

 delphia. A complete study of the lichens of Newfoundland and 

 adjacent islands can be made only after a thorough study of all 

 the existing material. 



Group: Radiatae 



Family: Usneaceae 



1. Usneahiirbatd (L) Web. ( = Us. dasypoga (Ach.) Nyl.) Stevenville Crossing 

 and Bottom brook on spruce, sterile. One specimen represents the phase known as 

 hirtella Am., another approaches the variety referred to by Tuckerman as plicita 

 Fr. ; the var. plicata. (Hoffm.) Hue of Dr. Zahlbruckner, who calls Heppian's Xo. 

 829 the typical plicata "grubig und rissig." This distribution, ^ though in one set 

 seemingly U. trichodea Ach.,^ is in another U. cavernosa Tuck. 



iHepp. Flecht. Europ. 14: No. 829. 1867. 

 2 Howe, Class. Usneaceae 14. 1912. 



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